13342-1623 RST 3844 (HD 117968)
13h 34m 10.74s -16° 23' 20.2" P.A. 166.00 sep 0.1 mag 9.50,9.50 Sp F6V dist. 141.84 pc (462.68 l.y.)
| Coord 2000 |
13342-1623 |
|
Discov num |
RST3844 |
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Comp |
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Coord arcsec 2000 |
13 34 10.74 -16 23 20.2 |
|
| Date first |
1937 |
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Date last |
2021 |
|
Obs |
18 |
|
| Pa first |
84 |
|
Pa last |
165.6 |
|
P.A. Now (θ) |
153.7° |
|
| Sep first |
0.4 |
|
Sep last |
0.084 |
|
Sep. Now (ρ) |
0.095" |
|
| Mag pri |
9.50 |
|
Mag sec |
9.50 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
F6V (yellow-white) |
|
| Pri motion ra |
+039 |
|
Sec motion ra |
|
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| Pri motion dec |
-048 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 117968 |
|
Constellation |
Virgo |
|
SAO |
158009 |
|
HIP |
66203 |
|
| Tycho2 |
6121-00387-1 |
|
Gaia DR2 |
3603943552411556992 |
|
HD |
117968 |
|
BD |
BD-15 3694 |
|
| Distance |
141.84 |
|
Distance ly |
462.68 |
|
ORBITAL ELEMENTS
| Period (P) | 121.85y | ± 2.7 |
Periastron (T) | 2010.94y | ± 0.49 |
Semi-major axis (a) | 0.255a | ± 0.003 |
| Eccentricity (e) | 0.432 | ± 0.007 |
Inclination (i) | 117.6° | ± 0.7 |
Longitude of periastron (ω) | 19.4° | ± 2.4 |
| Node (Ω) | 264.5° | ± 1.1 |
Notes | | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
298.8 |
0.127 |
| 2001 |
294.0 |
0.132 |
| 2002 |
289.5 |
0.136 |
| 2003 |
285.3 |
0.140 |
| 2004 |
281.3 |
0.144 |
| 2005 |
277.5 |
0.146 |
| 2006 |
273.8 |
0.148 |
| 2007 |
270.2 |
0.149 |
| 2008 |
266.6 |
0.148 |
| 2009 |
262.9 |
0.146 |
| 2010 |
259.0 |
0.143 |
| 2011 |
255.0 |
0.138 |
| 2012 |
250.6 |
0.132 |
| 2013 |
245.7 |
0.125 |
| 2014 |
240.2 |
0.117 |
| 2015 |
234.0 |
0.109 |
| 2016 |
226.7 |
0.101 |
| 2017 |
218.2 |
0.094 |
| 2018 |
208.4 |
0.088 |
| 2019 |
197.5 |
0.084 |
| 2020 |
185.8 |
0.083 |
| 2021 |
174.2 |
0.084 |
| 2022 |
163.4 |
0.088 |
| 2023 |
153.7 |
0.095 |
| 2024 |
145.4 |
0.103 |
| 2025 |
138.4 |
0.112 |
| 2026 |
132.5 |
0.122 |
| 2027 |
127.6 |
0.133 |
| 2028 |
123.4 |
0.144 |
| 2029 |
119.8 |
0.155 |
| 2030 |
116.7 |
0.166 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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